Astronomy Unit Test

Jeopardy Review Game

The Sun Life Cycle of Stars

Galaxies Measuring Matter

Gravity and the Big Bang

100 100 100 100 100

200 200 200 200 200

300 300 300 300 300

400 400 400 400 400

500 500 500 500 500

In which layer of the Sun is energy

made? ?

The Core

In order for nuclear fusion to occur,

conditions must be extremely ______ and

________.

Hot and dense

Describe how the Sun makes energy.

The Sun makes energy through nuclear fusion in which hydrogen

atoms combine to form helium.

Name the three layers of the Sun’s

“atmosphere”.

Photosphere, chromosphere, and

the corona

What are sunspots?

They are areas on the photosphere that are cooler than the rest of the photosphere,

so they appear darker. They are areas of intense

magnetic activity.

Stars are formed from a cloud of gas and dust called a

__________.

Nebula

The type of object that a star becomes when it dies depends

the star’s ________.

mass

A star spends most of its life in this stage.

Main sequence

After the super red giant phase, a very

high mass star erupts in an explosion called

a _________

Supernova or hypernova

Name the three objects a star might become when it dies.

Black dwarf, neutron star, black hole

Name three shapes that galaxies can

have.

Elliptical, spiral, and irregular

Put these structures in order from

smallest to largest: universe, star,

galaxy, solar system

Star, solar system, galaxy, universe

What object is located at the center

of many galaxies (including ours)?

A supermassive black hole

In what part of our galaxy is Earth

located?

In one of the outer spiral arms

What is the galaxy that is closest to

ours?

Andromeda

Define mass and weight.

Mass is the amount of matter in an object;

weight is the amount of gravitational force pulling on an object.

Define volume.

Volume is the amount of space an object

takes up.

Define density.

Density is a measure of how compact something

is; it is the amount of matter within a specfic

amount of space.

What is the densest known space object?

A black hole.

If a baseball has a mass of 145 g on Earth, what is its

mass on the International Space

Station?

145 grams

Because of the Big Bang, galaxies are doing

this.

Moving away from each other

About how long ago did the Big Bang

occur?

About 14 billion years ago

What two conditions are in balance to create the Earth’s

orbit around the Sun?

Gravity and the inertia of the Earth’s

velocity

Which of the following objects

exerts a gravitational pull:

Earth, the Sun, a lab table, a spider

They all do. If something has mass, it

has gravity.

Name two factors that affect the

gravitational pull between two objects.

The mass of each object and the

distance between them.